Manifest.json is an empty array

[Skreeauk]

My manifest.json is an empty array at build so I can't update search index and I'm not sure why. The out folder is perfectly fine.

"next": "^14.2.8",
"fumadocs-core": "^13.4.7",
"fumadocs-mdx": "^10.0.1",
"fumadocs-ui": "^13.4.7",

node - 20.17.0
npm - 10.8.2

source.config.ts

import {
	defineDocs,
	defineConfig,
	frontmatterSchema,
} from "fumadocs-mdx/config"

import { z } from "zod"

export const { docs, meta } = defineDocs({
	docs: {
		schema: frontmatterSchema.extend({
			keywords: z.array(z.string()).default([]),
			wikiURL: z.string().default(""),
		}),
	},
})

export default defineConfig({
	generateManifest: true,
})

source.js

import { docs, meta } from "@/.source"
import { createMDXSource } from "fumadocs-mdx"
import { loader } from "fumadocs-core/source"
import { Icons, createIcon } from "@/components/Icon"

export const source = loader({
	baseUrl: "/docs",
	icon(icon) {
		if (icon && icon in Icons) return createIcon({ icon: Icons[icon] })
	},
	source: createMDXSource(docs, meta),
})

generated source.config.mjs in .source

// source.config.ts
import {
  defineDocs,
  defineConfig,
  frontmatterSchema
} from "fumadocs-mdx/config";
import { z } from "zod";
var { docs, meta } = defineDocs({
  docs: {
    schema: frontmatterSchema.extend({
      keywords: z.array(z.string()).default([]),
      wikiURL: z.string().default("")
    })
  }
});
var source_config_default = defineConfig({
  generateManifest: true
});
export {
  source_config_default as default,
  docs,
  meta
};

error for one mdx:

[MDX] writing manifest
cannot find the search index of D:/Projects/NodeJS/dark-gbf/content/docs/celeste/changelog.mdx Error: ENOENT: no such file or directory, open 'D:\Projects\NodeJS\dark-gbf\.next\cache\fumadocs\f8aa6ffdd452107adddfdbb6d532bd68d3a4c96e367a79005bedf60448cbc3c7.json'
    at Object.openSync (node:fs:573:18)
    at Object.readFileSync (node:fs:452:35)
    at writeManifest (file:///D:/Projects/NodeJS/dark-gbf/node_modules/fumadocs-mdx/dist/chunk-P6WKCOD5.mjs:116:27)
    at process.<anonymous> (file:///D:/Projects/NodeJS/dark-gbf/node_modules/fumadocs-mdx/dist/next/index.mjs:161:7)        
    at process.emit (node:events:519:28)
    at process.processEmit [as emit] (D:\Projects\NodeJS\dark-gbf\node_modules\next\dist\compiled\ora\index.js:1:59071)     
    at process.exit (node:internal/process/per_thread:185:15)
    at D:\Projects\NodeJS\dark-gbf\node_modules\next\dist\bin\next:80:99
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
  errno: -4058,
  code: 'ENOENT',
  syscall: 'open',
  path: 'D:\\Projects\\NodeJS\\dark-gbf\\.next\\cache\\fumadocs\\f8aa6ffdd452107adddfdbb6d532bd68d3a4c96e367a79005bedf60448cbc3c7.json'
}